We use cookies to deliver essential features and to measure their performance. Learn more.
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:54 
Transit: 11:52 
Sunset: 15:50
sleep   (Nighttime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Crux » 

Mimosa - β Crucis (beta Crucis)

Below the horizon.  Never rises today
Alt: -25.56°   Az: 159.70°   Direction: South-South-East

Mimosa, also designated as β Crucis (beta Crucis), is a variable and multiple hypergiant star of spectral class B0 in the constellation of Crux.

Mimosa visual magnitude is 1.25, making it the 19th brightest star in the sky. Because of its brightness, Mimosa is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Mimosa - β Crucis (beta Crucis) star
DSS2 image of Mimosa. The red arrow shows the motion of Mimosa during the next 10000 years (-8.00 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

12h 49m 11s
-59° 49’ 27”
21h 25m 56s
10h 15m 08s

J2000

12h 47m 43s
-59° 41’ 18”

Galactic Coordinates

302.46°
3.18°

Finder Chart

loader
  Loading map...
Finder chart for Mimosa - β Crucis (beta Crucis).

Magnitude, Color, Spectral Class

1.25
Hypergiant

-3.92
B0III
14354K

The red dot in the diagram below shows where Mimosa is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of Mimosa. Attribution: Richard Powell / CC BY-SA

Star System Properties

Mimosa is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Mimosa double sysyem:

1.25
7.25
6
371.6 arcsec

Distance, Radial Speed, Proper Motion

Mimosa is distant 352.43 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

108.11
352.43
16 km/s
-0.048 arcsec/y
-0.014"/y

Alternative Designations

Mimosa
β Crucis
(beta Crucis)
SAO240259
SAO240259

Visibility from Your Location

Mimosa - β Crucis (beta Crucis) is currently not visible from Greenwich, UK